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ISR is falsely diagnosed by both raters on transversal (A) and coronal (B) ivACT reformations. C, On both images, a restenotic lesion is delineated at the distal stent portion. ISR can be excluded by iaDSA. The patient was admitted 2 months earlier than his planned follow-up appointment, despite no new symptoms, due to suspected restenosis on transcranial duplex sonography.
